Is this a good Class??

[miles_rich]

I am trying out classes, and have made just a small one and wondered is this the best way to code this problem using classes??

<?php

class classname
{
	var $username;


var $stored_username;

// Function to check if details are correct.
function check_var($username)
{

	if ($this->username != $this->stored_username)
	{
		return "Login Bad";
	}
	else
	{
		return "Login GOOD";
	}
}

// Function to get a variable.
function get_var($var_name)
{
	return $this->$var_name;
}

// Function to set a variable.
function set_var($var_name, $new_value)
{
	$this->$var_name = $new_value;
}
}

$test = new classname();
$test->set_var("stored_username","admin");
echo $test->check_var($test->set_var("username","test"));

// Debugging info.
echo "<br>";
echo "Stored - ".$test->get_var("stored_username");
echo "<br>";
echo "Entered - ".$test->get_var("username");

?>

I was trying to make a very simple login, that checks a value to see if it is the same as the one entered, if it is then a Login GOOD message comes up but if it is inncorrect the Login BAD comes up.

What do you think. How could i imporve it?